Household gatherings were limited to just five people and public gatherings have been kept at 30.

Residential care facilities were also closed to visitors.

New South Wales state Premier Gladys periodically in urged people to stay at home for New Year celebrations to avoid a super spreading event.

But we don't want New Year's Eve to be a situation where undetected cases people he may be in the very early stages of the disease and not know they've got it, not know there infectious unintentionally give it to those closest to them.

18 New Cove in 19 cases were reported on Wednesday, the biggest daily increase in a week.

Half were linked to an outbreak in Sydney's northern beaches that's now grown to more than 100 people over the past week, another cluster has also sprung up on the inner west side of Sydney, with six members often extended family testing.

Positive live viewings of this year's fireworks will be limited only for people with confirmed hospitality bookings and a permit.

And as for the fireworks, the usual nine PM display has been canceled altogether, and the annual midnight display will be reduced to just seven minutes.